U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The production of too many useful things results in too many useless people."

Karl Marx

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 430/43 - Color correction


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Processes wherein the color in the color image is modified
No. of patents: 35
Last issue date: 02/15/2005


NumberTitleIssue Date
6855292In situ heat induced antigen recovery and staining apparatus and method
An automated in situ heat induced antigen recovery and staining method and apparatus for treating a plurality of microscope slides. The process of heat induced antigen recovery and the process of staining the biological sample on the microscope slide are conducted i...
02/15/2005
6509950Preexposure method and apparatus for photosensitive films
A preexposure apparatus comprises a film supply station ST1 for arranging a film cartridge 14 containing a film 12 accommodated therein, a film-drawing station-ST3 for automatically drawing the film 12 over its entire length, an exposure station ST5 for e...
01/21/2003
6194109Methods of detecting and correcting color plane mis-registration on an intermediate transfer belt
In one aspect, the invention encompasses a method of using an image forming device. A first pattern of toner is provided on a photosensitive drum of the image forming device. The toner is transferred from the photosensitive drum to an intermediate transfe...
02/27/2001
6047143Systems and method for adjusting image data to compensate for cross-contamination
An image data adjustment system is described which adjusts image data to be printed based upon the level of contaminants detected in the toner reservoirs. The system detects the level of contamination of a toner to be printed and adjusts the image data so...
04/04/2000
5447811Color image reproduction of scenes with preferential tone mapping
A system and method of image reproduction in color with preferential tone mapping are provided in which the method includes the steps of capturing original scene parameters and creating a visual reproduction of the scene, the method additionally comprisin...
09/05/1995
5321468Image forming apparatus having inference means and method of manufacturing the same
In an image forming apparatus of the present invention, the adhesion amounts of developing agent on a high-density test pattern and a low-density test pattern are measured by a toner density measuring unit. On the basis of the measured adhesion amounts of...
06/14/1994
5229190Handleable card and method of manufacture
A card (10) and a method of manufacturing handleable cards includes providing front and back sheets (44, 46) of thin, flexible, opaque material, depositing images on such sheets by electrophotographic process to affix toner particles (14, 32) on the sheet...
07/20/1993
5213921Electrophotographic color printing process
The present invention relates to electrophotographic printing and, in particular, to a process for plural color electrophotographic printing with controlled deposition of each color during the printing process....
05/25/1993
5184183Apparatus for printing grey scale images
An electrophotographic printing process enables a two-color printer having only binary printing capability to produce high-quality monochrome grey-scale output having, for example, up to 100 grey levels in a 3×3 super-pixel through the use of a second to...
02/02/1993
5122842Color electrostatography process control by way of toner development characteristics
Information regarding a toner development characteristic associated with a development station is used to automatically adjust process control parameters associated with the other development stations to achieve quality color productions. A color electros...
06/16/1992
5071728Electrophotographic imaging method involves stripping transferred toner image and transferring same to alternate substrate
An imaging method capable of producing high-resolution full color images on substrates such as flexible plastics sheets to form weatherable signs for exterior display, the method comprising: (a) providing a plurality of carrier sheets, each comprising a flexib...
12/10/1991
5043237Inhibitor-containing photohardenable electrostatic master compositions having improved resolution
Photohardenable electrostatic master with improved environmental latitude and dot shape comprising (1) an electrically conductive substrate, and coated thereon (2) a layer of photohardenable composition having a speed that requires an exposure energy in the ra...
08/27/1991
5038171Multicolored image forming method and apparatus therefor
An image forming method and an apparatus therefor for forming a reproduced color image on a recording medium by repeating a process of forming on a latent image carrier an electrostatic latent image corresponding to a document image through an image expos...
08/06/1991
5019472Method for duplicating press characteristic dot gain in electrostatic proofing systems
A method for electrostatically producing prepress printing proofs that accurately predict results of actual press runs for a given press having known or desired characteristic response....
05/28/1991
4989043Color-balance control method
In a multicolor image-forming apparatus having a photoelectric sensor for detecting the amount of toner of an unfixed toner image adhering onto a photosensitive element, and a toner density sensor for detecting the density of a developer in a developing m...
01/29/1991
4988591Process for producing color images
A process for producing color images electrophotographically by means of toner image transfer, wherein toner images of different colors are successively transferred to an adhesive layer with application of pressure, is disclosed. The process produces colo...
01/29/1991
4814797Apparatus and method for controlling color dot size in multicolor image
A multicolor image forming apparatus for forming a multicolor visual image on an image retainer, wherein latent images formed on the image retainer are successively developed on a color basis. The diameter of dots constituting the visual image of each col...
03/21/1989
4778740Color electrophotographic method and apparatus
Disclosed is a color electrophotographic method of forming a plurality of images of different colors on a photosensitive medium by repetitions of a series of operations including steps for charging, exposure and development. An exposure of photosensitive ...
10/18/1988
4761669Highlight color printing
An electrophotographic printing machine in which indicia are printed on a sheet in at least two different colors. An electrostatic latent image is recorded on a photoconductive member and developed with a liquid developer material of one color. The latent...
08/02/1988
4734735Image apparatus having a color separation function
An image forming apparatus wherein an image exposure device, a whole surface exposure device by light of specific colors and a developing device, are disposed facing a photosensitive member having a surface insulating layer and provided with a color separ...
03/29/1988
4708459Electrophotographic color proofing apparatus and method
Electrophotographic color proof generating apparatus includes a charger station, an exposure station, and a development station. Starting with color half-tone separations of artwork, the apparatus, using a unique method, electronically controls the exposu...
11/24/1987
4542979Method and apparatus for forming a multicolor proof print
A method and apparatus for electrophotographically forming a multi-color proof print using at least two color separations. Two toner images of different color are formed in registration with each other. The photoconductive coating for each toner image is ...
09/24/1985
4518246Apparatus and method for forming multicolor electrophotographic images
A plurality of constituent electrostatic color-separation images are produced in sequence for subsequent toner-development and superimposition and at least one developed constituent image is used to color-correct a succeeding constituent image which is no...
05/21/1985
4493881Electrophotographic method for producing black and color separation images
An electrophotographic method is disclosed for forming a black (or neutral) toner separation image and a color toner separation image from a single original without cross-contamination of black toner in the color separation image and vice versa. The metho...
01/15/1985
4469433Color copying machine using signal conversion
A color copying machine includes a device separating the image information from each area of the original into colors corresponding to predetermined recording colors to thereby form corresponding video signals. A preferential selection circuit converts ea...
09/04/1984
4413899Copying method and apparatus
A copying method for producing duplicates of an original of at least two colors by using a composite photosensitive member including more than two photosensitive layers, wherein the photosensitive member is subjected to charging more than twice and expose...
11/08/1983
4336994Multi-mode color copier
A multi-mode color copier having a photoreceptor for storing color separated images. The color copier includes a platen input for transmitting color images from an original to the photoreceptor, a raster output scanner for writing on the photoreceptor and...
06/29/1982
4204728Method and apparatus for color conversion
A method and an apparatus for color conversion capable of converting a particular color of an image original into another color as desired, in which indication is made as to what color of the image original colors other than that designated for the color ...
05/27/1980
4197332Sub 100A range line width pattern fabrication
Sub-100A line width patterns are formed on a member by electron beam conversion and fixing of a resist that arrives at the reaction zone point by surface migration into a resist pattern of a precise thickness and width while the member rests on an electro...
04/08/1980
4188213Color corrected printing system
A color process in which color copies of an original document containing color information are reproduced. In this process, successive single color electrostatic latent images are recorded on an image bearing member. Each successive single color electrost...
02/12/1980
4168164Screen process for forming electrostatic latent images
A process for forming electrostatic latent images to be developed by a color toner. The process comprises the steps of forming a first electrostatic image by charging a photoconductive layer formed on a first ion beam controlling screen, exposing the char...
09/18/1979
4108654Color electrophotographic process employing a document screen
The present invention is directed toward a color electrophotographic imaging process and a method for extending the range capabilities of said process. The process includes providing a document screen adapted to be used at the exposure station proximate t...
08/22/1978
4046476Color design method
A method of color design is provided in which multi-color, fast copies of a multi-color optical image, in a multiplicity of color design combinations are obtained. These fast copies enable a designer to quickly possess proofs of his design in various colo...
09/06/1977
3999988Method for real-time color masking
A method of real-time color masking is disclosed wherein pairs of color filters are inserted at specific locations in the optical paths of an electro-optical image multiplication system to thereby produce a modulated radiation pattern representative of th...
12/28/1976
3970382Spatially selective optical system
An optical system in which a light image of an original document is filtered to form a single color light image which is transmitted through a photochromic filter. The photochromic filter is responsive to the intensity of the single color light image to a...
07/20/1976
 
Sign InRegister
Username  
Password   
forgot password?